Findingus
A term used to describe a person who has annoyed you, in a way which you consider to be ridiculous - has committed a silly act.
Person 1: "Person 2, why did you steal my sandwich you are an utter findingus"
Person 1: "Person 2, may I please question why you are such a findingus, YOU PUT THE PAINTING UPSIDE DOWN!"
Person 1: "Person 2, may I please question why you are such a findingus, YOU PUT THE PAINTING UPSIDE DOWN!"